when compiling their own toolchain, most people just download "snapshot" version openWRT source code! but VoCore released when it is "barrier_breaker" time and toolchain is not compatible. here are some tutorial videos: compile your own openWRT and toolchain: https://youtu.be/NZnWPbmbb6ccross compile your first app, hello VoCore: https://youtu.be/rcKt-VjIG7w "barrier_breaker" was shown times.